. It is in the region of Uusimaa
, located in southern Finland, on the shore of the Gulf of Finland
, an arm of the Baltic Sea
. The population of the city of Helsinki is , making it by far the most populous municipality in Finland.
1918 Finnish Civil War: Rebels seized control of the capital, Helsinki, and members of the Senate of Finland go underground.
1939 Winter War: Soviet forces cross the Finnish border in several places and bomb Helsinki and several other Finnish cities, starting the war.
1969 Cold War: Negotiators from the Soviet Union and the United States meet in Helsinki to begin SALT I negotiations aimed at limiting the number of strategic weapons on both sides.